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MET233

Phase 1

Obesity and Overweight | Monoclonal antibody | Metabolic |Metsera, Inc.|Last Updated: May 26, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment144
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07022977A Study of MET233 in Individuals With Obesity or OverweightPHASE1 COMPLETED 144Nov 6, 2024Apr 21, 2026May 26, 20261 United States
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Study Endpoints
Primary Endpoints
Occurrence of Treatment Emergent Adverse Events
Part A (Baseline to Day 85), Part B (Baseline to Day 113), Part C (Baseline to Day 162), Part D (Baseline to Day 239)
Secondary Endpoints
Area under the concentration versus time curve extrapolated to infinity (AUCinf)
Part A (Baseline to Day 85)
Area under the concentration versus time curve during the dosing interval (AUCtau)
Part B (Baseline to Day 113), Part C (Baseline to Day 162), Part D (Baseline to Day 239)
Maximum observed concentration (Cmax)
Part A (Baseline to Day 85), Part B (Baseline to Day 113), Part C (Baseline to Day 162), Part D (Baseline to Day 239)
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
(Part A) MET233EXPERIMENTALParticipants will receive a single dose of MET233 at up to 5 dose levels
(Part A) PlaceboPLACEBO_COMPARATORParticipants will receive a single dose of placebo
(Part B) MET233EXPERIMENTALParticipants will receive five weekly doses of MET233 at up to 4 dose levels
(Part B) PlaceboPLACEBO_COMPARATORParticipants will receive five weekly doses of placebo
(Part C) MET233EXPERIMENTALParticipants will receive twelve weekly doses of MET233 at up to 4 dose levels, followed by a 13th potential monthly dose
(Part C) PlaceboPLACEBO_COMPARATORParticipants will receive twelve weekly doses of placebo, followed by a 13th potential monthly dose
(Part D) MET233EXPERIMENTALParticipants will receive twelve weekly doses of MET233, followed by three monthly doses.
(Part D) PlaceboPLACEBO_COMPARATORParticipants will receive twelve weekly doses of placebo, followed by three monthly doses.
Interventions
NameTypeDescription
MET233BIOLOGICALFor subcutaneous administration
PlaceboBIOLOGICALSterile 0.9% (w/v) saline for subcutaneous administration
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Eligibility Criteria
Age Range18 Years — 70 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Adult (≥18 to ≤70 years) male and female participants with obesity or overweight (BMI 27.0 kg/m2 to 38.0 kg/m2, inclusive) but otherwise healthy. Exclusion Criteria: * Female who is lactating or who is pregnant according to the pregnancy test at the Screening visit or prior ...

Countries:United States
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Recent Changes (Last 90 Days)
HIGHMay 27, 2026NCT07022977Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHMay 27, 2026NCT07022977Status: ACTIVE_NOT_RECRUITING → COMPLETED
LOWMay 26, 2026NCT07022977primaryCompletionDate: changed
LOWMay 24, 2026NCT07022977studyFirstPostDate: changed